Aquatic invasive species (AIS) pose an ongoing threat to Washington's environment and economy. Find out which species are considered invasive in Washington.
| Species | Category | Family | AIS classification |
|---|---|---|---|
| Southern Rock lobster (Jasus novaehollandiae) | Crustaceans | Panuliridae | Regulated |
| Patterned Anthurid (Mesanthura astelia) | Crustaceans | Anthuridae | Regulated |
| Sea flea (Nebalia sp) | Crustaceans | Leptostraca | Regulated |
| Ringed crayfish (Orconectes neglectus) | Crustaceans | Cambaridae | Prohibited |
| Rusty crayfish (Orconectes rusticus) | Crustaceans | Cambaridae | Prohibited |
| Northern crayfish (Orconectes virilus) | Crustaceans | Cambaridae | Prohibited |
| Common Hermit crab (Paguristes frontalis) | Crustaceans | Diogenidae | Regulated |
| Land Yabby (Parastacoides tasmanicus tasmanicus) | Crustaceans | Parastacidae | Prohibited |
| Australian Porcelain crab (Petrocheles australiensis) | Crustaceans | Porcellanidae | Regulated |
| Red swamp crawfish (Procambarus clarkii) | Crustaceans | Cambaridae | Prohibited |
| Burrowing isopod (Sphaeroma quoyanum) | Crustaceans | Spheromatidae | Prohibited |
| Tetraclitella purpurascens (Tetraclitella purpurascens) | Crustaceans | Tetraclitidae | Regulated |